I love the shoot'em'ups and this game feel even better than Star Sabre, Great Work Axelay!!!
I would also love to hear from anyone who happens to try it out on the real thing, how it looks (does it work), and what their setup was. Edge Grinder is using the 'CRTC register 3' method to get the fine scrolling, as was used in a handful of commercial games. The issues this can create are well known, but I'd really like to know how common screens that produce acceptable results are. I already have two slightly different acceptable results on my two CTMs, and two different kinds of failure on modulators.
I have been able to test with more calm in my two 6128 (CRTC 2 and 4) attached to a CRT TV by scart and the scroll WOW, the scroll is super smooth

and the scoreboard stays fixed... i remember that the first examples of this technique that you put a few time ago, had a little shake in the scoreboard, but the scoreboard in
Edge Grinder is rock solid
Axelay could you make a postmortem in the line of Gamasutra (what went right and wrong, technical difficulties, ...) for all the people interested in the technical side
I don't want to forget the wonderful work of the Tom & Jerry, Smila and STE. Great Work people!!!
Sorry for the bad photographer, me